Correct

三思

/ sān sī / 
Strokes

Definition

think twice

Example

As a Verb

think thrice—think carefully; ponder over

1
Zhè
这
shì
事
hěn
很
zhòngyào
重要
  
,
nǐ
你
kě
可
de
得
sānsī
三思
ā
啊
  
!

This is very important. You must think it over.